MF-R700-2-99 Equivalent & Substitute Parts

Part Overview

The MF-R700-2-99 is a Polymeric PTC Resettable Fuse manufactured by Bourns Inc. as part of the Multifuse® MF-R series. This component is rated for 30V maximum voltage with a 7A hold current and 14A trip current, designed for through-hole radial mounting in disc configuration. The MF-R700-2-99 is currently listed as obsolete, making identification of equivalent substitute parts essential for ongoing design support and component procurement.

Substiute Parts

MF-R700-2-99

Bourns Inc.In Stock: 773MF-R700-2-99 Datasheet

Current PartRFQ

MF-R700-2

Bourns Inc.In Stock: 1725MF-R700-2 Datasheet

Parametric EquivalentRFQ

MF-R700-2-14

Bourns Inc.In Stock: 714MF-R700-2-14 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MF-R700-2-99 are determined by electrical and mechanical parameter equivalence within the Multifuse® MF-R series. The following criteria establish substitutability:

Electrical Parameters (Critical):

• Voltage - Max: 30V
• Current - Hold (Ih) (Max): 7 A
• Current - Trip (It): 14 A
• Current - Max: 40 A
• Time to Trip: 17.5 s
• Resistance - Initial (Ri) (Min): 5 mOhms
• Resistance - Post Trip (R1) (Max): 30 mOhms
• Operating Temperature: -40°C ~ 85°C

Mechanical Parameters (Critical):

• Mounting Type: Through Hole
• Package / Case: Radial, Disc
• Size / Dimension: 0.870" L x 0.118" W (22.10mm x 3.00mm)
• Lead Spacing: 0.402" (10.20mm)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

All identified substitute parts maintain identical electrical and mechanical specifications, ensuring direct functional equivalence for circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

Both MF-R700-2 and MF-R700-2-14 are direct electrical and mechanical equivalents to the obsolete MF-R700-2-99. Selection between these active alternatives is based on product status and compliance requirements:

MF-R700-2 is an active product with current manufacturing status, packaged in Cut Tape (CT) format. This part maintains the same electrical specifications and core certifications (cURus, TUV) as the original MF-R700-2-99.

MF-R700-2-14 is an active product with enhanced compliance certifications including cUL, cURus, TUV, and UL approvals, and includes AEC-Q200 automotive qualification. This part is packaged in Tape & Reel (TR) format. The expanded approval agency list provides additional regulatory coverage for applications requiring automotive or extended certification scope.

Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. Selection should be based on packaging requirements (Cut Tape versus Tape & Reel) and certification scope needed for the target application.

Frequently Asked Questions (FAQ)

Q: Can MF-R700-2 or MF-R700-2-14 be used as direct replacements for MF-R700-2-99?

A: Yes. Both parts are electrically and mechanically equivalent to MF-R700-2-99. All three parts share identical voltage ratings (30V), current specifications (7A hold, 14A trip), resistance characteristics, operating temperature range, and physical dimensions. The primary differences are product status (MF-R700-2-99 is obsolete while the others are active) and packaging format.

Q: What is the difference between MF-R700-2 and MF-R700-2-14?

A: The electrical and mechanical specifications are identical. The differences are: (1) Packaging format—MF-R700-2 uses Cut Tape (CT) while MF-R700-2-14 uses Tape & Reel (TR); (2) Approval agencies—MF-R700-2-14 includes additional certifications (cUL, UL) and AEC-Q200 automotive qualification, while MF-R700-2 carries cURus and TUV approvals.

Q: Which substitute part should I select for new designs?

A: For new designs, either MF-R700-2 or MF-R700-2-14 is appropriate. Choose MF-R700-2-14 if your application requires automotive qualification (AEC-Q200) or expanded regulatory certifications (cUL, UL). Choose MF-R700-2 for standard industrial applications where Cut Tape packaging is preferred. Both are active products with current manufacturing support.

Q: Are there any compatibility concerns with PCB layout or mounting?

A: No. All three parts (MF-R700-2-99, MF-R700-2, MF-R700-2-14) have identical physical dimensions (0.870" L x 0.118" W), lead spacing (0.402"), and seated height (1.173"). PCB footprints and mounting requirements are identical across all three parts.

Q: What packaging options are available?

A: MF-R700-2 is supplied in Cut Tape (CT) format. MF-R700-2-14 is supplied in Tape & Reel (TR) format. Packaging selection depends on assembly process requirements and order volume.